EXCEPTION: Assertion failed!
#0 /is/htdocs/wp1133502_PT57W3G21I/neu/site/markup_components.php(925): ag_assert(false)
#1 /is/htdocs/wp1133502_PT57W3G21I/neu/www/show_activity.php(68): ag_display_activities('luebeck', 'ski', '', 'Vereinssport', '102245')
#2 {main}FEHLER